debug: force process/physic process ticks after runtime script attach

movement/player_movement_controller.gd

@@ -7,6 +7,11 @@ signal chain_updated(count: int, bonus: float)
 
 var _machine: MovementStateMachine = null
 
+# Explicitly ensure this node ticks after being attached by set_script().
+func _ensure_process() -> void:
+	set_process(true)
+	set_physics_process(true)
+
 
 func _ensure_machine() -> MovementStateMachine:
 	if is_instance_valid(_machine):
@@ -38,6 +43,7 @@ func _ready() -> void:
 		sm.player = self
 		sm.params = params
 		sm.movement_event.connect(_on_movement_event)
+	_ensure_process()
 
 
 func _process(_delta: float) -> void:
@@ -51,7 +57,7 @@ func _process(_delta: float) -> void:
 	sm.input_dash = Input.is_action_just_pressed("dash") and not sm.input_dash
 	sm.input_dir = Input.get_vector("move_left", "move_right", "move_forward", "move_back")
 
-	# DEBUG: confirm controller is receiving input and machine state each frame
+	# DEBUG: emit every frame so we can see whether inputs reach the controller.
 	var p = sm.player
 	print("MOVEMENT_DEBUG state=%s vel=%s input_dir=%s jump=%s sprint=%s crouch=%s dash=%s" % [
 		sm.current_state,